Statistical model for aerosol size distribution parameters according to weather parameters

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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Abstract

Predictions of atmospheric transmittance in desert aerosol environments using MODTRAN code diverge significantly from measured data. Good prediction of the desert particulate size distribution is required in order to predict atmospheric scattering and absorption parameters. It is also essential to the prediction of the aerosol atmospheric modulation transfer function which is often the dominant component of the overall atmospheric MTF. Recently an effort to predict statistics but not size distribution according to simple weather parameters has been made for coarse desert aerosols. A quantitative analysis of the desert particulate size distribution models was also performed. In this research the size distribution parameters measured by optical counters are related to weather parameters. Known statistical and analytical models such as MODTRAN relate the size distribution parameters only to relative humidity for continental atmospheres. Although humidity has a significant role in the prediction of aerosol size statistics, other weather parameters are seen here to strongly influence also the size distribution parameters. Comparisons such as the above can be used to predict under which conditions the MODTRAN aerosol models have good or poor accuracy. It is also hoped that they will lead to improvements in MODTRAN, improving the accuracy of the humidity dependence as well as by incorporating other meteorological parameters into the MODTRAN prediction models.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Pages134-143
Number of pages10
StatePublished - 1 Dec 1995
Event9th Meeting on Optical Engineering in Israel - Tel-Aviv, Isr
Duration: 24 Oct 199426 Oct 1994

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume2426
ISSN (Print)0277-786X

Conference

Conference9th Meeting on Optical Engineering in Israel
CityTel-Aviv, Isr
Period24/10/9426/10/94

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